March Weather in Ancaster, Canada

Last updated: June 18, 2025

In March, the average temperature in Ancaster, Canada hovers around 1°C (34°F). However, temperatures can fluctuate dramatically, with minimums plunging to -20°C (-4°F) and maximums reaching a pleasant 20°C (69°F). You can expect approximately 64 mm (2.5 in) of precipitation over 9 days, and the air will feel quite humid, with an average humidity level of 87%.

March Temperature in Ancaster

In March in Ancaster, the average temperature is 1°C (34°F), with maximums reaching up to 20°C (69°F) and minimums dropping as low as -20°C (-4°F). Travelers should be prepared for a wide range of temperatures during this time, packing accordingly for both warm days and frigid nights.

March Weather in Ancaster: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Ancaster, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ancaster, March typically has an average temperature of 1°C (34°F), with highs reaching up to 20°C (69°F) and lows dropping to around -20°C (-4°F).

Data source: Temperature data for Ancaster generated using information from the Copernicus Climate Change Service.

March Precipitation in Ancaster

In Ancaster in March, the precipitation amount is 64 mm (2.5 in) over a span of 9 days.

March Precipitation Trends in Ancaster

The chart displays monthly precipitation patterns in Ancaster, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Ancaster, March typically receives around 64 mm (2.5 inches) of precipitation spread over approximately 9 days.

Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

March Humidity in Ancaster

In Ancaster in March humidity is 87%. With an average temperature of 1°C (34°F), this humidity feels like a chilling blanket enveloping you, making every step outside feel heavy and damp, and leaving you longing for warmth and comfort while traveling.

March Average Humidity in Ancaster

This chart illustrates the average monthly humidity levels in Ancaster, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Ancaster is approximately 87%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Ancaster

In Ancaster in March, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Ancaster.

Maximum UV Index Levels in Ancaster for March

The chart shows the monthly maximum UV Index (UVI) for Ancaster in March, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In March, the maximum UV index in Ancaster typically reaches 5, which falls under the moderate exposure category.

Data source: Ancaster March UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How March Weather in Ancaster Compares to Other Months

Weather in Ancaster varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Ancaster, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Ancaster, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	69 mm (2.7 inches)	90%	low
February Weather	-3°C (26°F)	73 mm (2.9 inches)	90%	moderate
March Weather	1°C (34°F)	64 mm (2.5 inches)	87%	moderate
April Weather	7°C (44°F)	103 mm (4.1 inches)	87%	very high
May Weather	14°C (57°F)	96 mm (3.8 inches)	82%	very high
June Weather	19°C (67°F)	98 mm (3.9 inches)	81%	very high
July Weather	22°C (73°F)	93 mm (3.6 inches)	79%	very high
August Weather	21°C (71°F)	89 mm (3.5 inches)	80%	very high
September Weather	18°C (64°F)	69 mm (2.7 inches)	81%	high
October Weather	11°C (53°F)	101 mm (4.0 inches)	84%	moderate
November Weather	3°C (38°F)	75 mm (2.9 inches)	88%	moderate
December Weather	-1°C (31°F)	73 mm (2.9 inches)	87%	low